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二乙胺

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Two kinds of ashless and non-phosphorus additives, hydroxyl-containing dithiocarbamate derivatives were prepared.

合成了2-乙羟基-吗啡啉二硫代氨基甲酸酯和2-乙羟基-二正丁胺基二硫代氨基甲酸酯两种添加剂。

Water,cetearyl alcohol,butylene glycol,ceteth-20,glycolic acid,cyclomethicone,citric acid,sodium hydroxide,xanthan gum,lactic acid,phenoxyethanol,sodium citrate,magnesium aluminium silicate,citrus aurantium dulcisoil,disodium edta,pentadecalactone,methylparaben,iris germanica root extract,butylparaben,ethylparaben,propylparaben,silica,chlorhexidine digluconate.citrus aurantium amaraoil,limonene,linalool

水, 棕榈醇,丁二醇,鲸蜡醇聚醚 20,甘醇酸,环甲硅脂,柠檬酸,氢氧化钠,山羊胶,乳酸,苯氧乙醇,柠檬酸钠,硅酸镁铝,甜橙油,乙酸乙二胺二钠,环十五内酯,羟苯甲酯,鸢尾花根萃取,羟苯丁酯,羟苯乙酯,羟苯丙酯,二氧化硅,洗必泰葡萄糖酸盐,苦橙油,柠檬精油,芳樟醇

Amino-6-methoxy Benzothiazole 99%、2-Amino Benzothiazole 99%、Veratraldehyde 99%、Veratric Acid 99%、1,2- Dimethoxy Benzene 99%、6-Nitroveratric Acid 97%、2,5-Dichlorobenzoic Acid 99%、4-Chloro-3-Nitrobenzoic Acid 99%、 3-Nitrobenzole Acid 98%、p-Methoxybenzoie Acid 99%、Anisole 99.5%、p-Methoxyacetophenonc 99%、(2'-Chloroethyl) Benzene 99%、(2'-Bromoethyl) Benzene 99%、N,N-Diethyi-m-Toiuamide 99%、Aminoacetonitrile Hydrochloride 98%、 Alkyl Diphenyl Phosphate Estrel 98%、5-Chloro-2-benzothiazolone 99%、6-bromo-2-naphthol 98%、6-Nitro-Veretric Acid Estrel 97%、4-chloro phenoxyaeetic 99

2-氨基-6-甲氧基苯骈噻唑、2-氨基苯骈噻唑、藜芦醛、藜芦酸、藜芦醚、6-硝基藜芦酸、2,5-二氯苯甲酸、3-硝基-4-氯苯甲酸、3-硝基苯甲酸、对甲氧基苯甲酸、苯甲醚、对甲氧基苯乙酮、β-氯代苯乙烷、β-溴代苯乙烷、N,N-二乙基间甲苯甲酰胺、氨基乙腈盐酸盐、磷酸二苯月桂酯、5-氯-2-苯骈噻唑酮、6-溴-2-萘酚、6-硝基藜芦酸甲酯、4-氯苯氧乙酸

The factors which affect the average molecular weight of the polymer of AM and DMDAAC were investigated. The optimal reaction conditions are as follows: the concentration of monomer AM was 30%, while DMDAAC was 5%; the reaction temperature was 30℃, the amount of initiators at the low temperature stage was 0.05‰(compared to the weight of the monomers joining the polymerization), while V-50 was 0.025‰, the weight ratio of potassium persulphate to sodium bisulphite is 1:1, the amount of carbamide was 40‰, and complexing agent was 0.05‰, besides, aerate nitrogen gas for 8min, then the high molecular weight polymer (M=1.217×10^7) could be got after 16h reaction.

研究了影响AM与DMDAAC共聚物的平均分子量的因素,得到了优化条件为:单体浓度为30%,DMDAAC与AM摩尔比为5:95,聚合温度为30℃,低温段引发剂用量为0.05‰,K2S2O8与NaHSO3质量比为1:1,偶氮二异丁基脒盐酸盐(V-50)用量为0.025‰,尿素用量为40‰,乙二胺四乙酸二钠(EDTA-2Na)用量为0.05‰,在此优化条件下聚合反应16h后得到分子量为1.217×10^7的阳离子型聚丙烯酰胺。

The diluent contain magnesium chloride, potassium citrate, sodium glutamate, dipotassium hydrogen phosphate, monopotassium phosphate and fructose, semen vitality is hightest after frozen.The average value is 0.52,highter than other 5 diluent significantly (P﹤0.01).So chose this diluent as semen cryopreservation diluent on chicken. Definite cryoprotectant, equilibrium time and thaw temperature:On the base of test one,research freeze sheltering effect about glycerin, DMSO ,DMA and DMF, each with 4 consistency.The result showed that 10%DMSO sheltering effect is the best, the next is 4%DMA,semen vitality are 0.58 and 0.55 after frozen.

冷冻保护剂、平衡时间和解冻温度的确定在试验一的基础上,研究甘油、二甲基亚砜、二甲基乙酰胺、二甲基甲酰胺4种冷冻保护剂在4种浓度下对鸡精子的冷冻保护作用,结果表明,10%DMSO保护效果最好,其次为4%浓度的DMA,精液冻后活力分别为0.58和0.55,两者之间差异不显著(P﹥0.05)。

For the reaction between divinyl sulfone and N-ethylethylene-diamine or N-methylpropane-1, 3-diamine , no cross-linking occurred when the feed ratio of A〓 to BB'〓 was 1/1. When the feed ratio of DV to NDA or NPA is 3/2, no cross-linking occurred too in organic solvents such as DMSO, DMF and NMP, while cross-linking does occur in water.

对于二乙烯基砜与N-乙基乙二胺或N-甲基-1,3-丙二胺的反应,当加料配比为1/1时,反应在水和有机溶剂中不会凝胶;当配比为3/2时,反应在有机溶剂中亦不凝胶,而在水中反应时,会经过一种&假凝胶&过程,并最终发生凝胶。

In this paper, the synthesis of polyamide acid resin, with 4, 4′-diam-inodiphenyl ether and pyromellitic dianhyride as monomers and dimethylacetamide as solvent, is reported; the preparation of polyimide fiber from PAA resin by dry- spinning method is described; and the effects of various factors of operating conditions upon the mechanical properties of the fiber is discussed.

本文报导了用4,4′—二氨基二苯醚与苯均四酸酐作单体,在N,N′—二甲基乙酰胺溶剂中合成聚酰胺酸树脂,以及用该树脂经干纺法制备纤维和制备过程中各项参数对纤维力学性能的影响。

With land area of 2,800M2 and completed quality supervision test instrument, its annual sales amount reaches 30,000,000 RMB. Its main products, Succinimide,butanimide,2.5-diketopyrrolidine;N-bromobutanimide or N-bromosuccinimide;N- chlorosuccinimide (N-chlorobutanimide);Bromoacetonitrile,Bromomethyl cyanide; Quinoline;P-Bromophenol;4-Bromophenol;N.N'- dicyclohexylcarbodiimide;S-3-Hydroxy-γ-Butyrolactone;2.3-Dihydrofuran;Ammonia water, Ammonium hydroxide; sell well in the US, South Korea, Europe and other countries and are praised highly by all clients.

占地面积2800M2,年销售额3000万元,公司拥有完备的质量监测检验仪器和手段,主要产品有:琥珀酰亚胺、N-溴代琥珀酰亚胺、N-氯代琥珀酰亚胺、溴乙晴、喹啉(95%)、喹啉( 98%)、对溴苯酚、N.N'-二环已基碳化二亚胺、s-3-羟基-γ-丁内酯、2.3-二氢呋喃、氨水、氢氧化胺,产品远销美国、韩国、欧洲等国家和地区,深受用户青睐。

Replacing DETA with PIP, a new three dimensional compound 3 issynthesized and the 3D anionic framework of compound 3 is constructed from twodistinct motifs, a one-dimensional tancoite chain and a single 4-ring (S4R) unit,which contains four intersecting channels running throughout the structure as 8,12-member ring channels along to the a axis and 12-member ring channels along theb and c axis, respectively.

其中,以乙二胺为模板剂的亚磷酸铟微孔化合物具有无限的共边4员环一维链状结构;以哌嗪和1,6-己二胺为模板剂合成出的亚磷酸铟化合物分别具有二维交叉8员环孔道和16员环孔道的三维开放骨架结构。

They are insoluble in water, ethanol, methanol, acetone, chloroform and benzene, but soluble in DMA, DMF and DMSO.

它们溶于N,N-二甲基甲酰胺、N,N-二甲基乙酰胺和二甲基亚矾等溶剂,但不溶于水、乙醇、甲醇、丙酮、氯仿和苯。

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Plunder melds and run with this jewel!

掠夺melds和运行与此宝石!

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻,也许正是在通往天国的路上,我体验着这白色的晕旋。

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单击"保存"会将文件保存到主持人的硬盘或服务器上,而不是您自己的计算机上。